I want to provide user authentication and resource/service authority to my cluster. I do not have LDAP server. I want to use Kerberos for my cluster security. How can I configure and start using kerberos without LDAP ?

I have followed this link but i don't what is next step ? How can i integrate kerberos with Ambari ?

Re: kerberos configuration without AD/LDAP

Be sure you have Installed and Configured your KDC and have prepared the JCE on each host in the cluster.
Log in to Ambari Web and Browse to Admin > Kerberos.
Click “Enable Kerberos” to launch the wizard.

Re: kerberos configuration without AD/LDAP

After downloading jce8 i am not able to unzip it. It shows below error:

Archive: jce_policy-8.zip
End-of-central-directory signature not found. Either this file is not
a zipfile, or it constitutes one disk of a multi-part archive. In the
latter case the central directory and zipfile comment will be found on
the last disk(s) of this archive.
unzip: cannot find zipfile directory in one of jce_policy-8.zip or
jce_policy-8.zip.zip, and cannot find jce_policy-8.zip.ZIP, period.